Home / 1,624.80-2,241.36-1,231.14

Finding the Fourth Proportional to 1,624.80, 2,241.36 and 1,231.14

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Solution

The fourth proportional to 1,624.80, 2,241.36 and 1,231.14 is: 1,698.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,624.80 : 2,241.36 = 1,231.14 : x
  2. Step 2: Convert to fraction form
    1,624.80/2,241.36 = 1,231.14/x
  3. Step 3: Cross multiply
    1,624.80x = 2,241.36 × 1,231.14
  4. Step 4: Simplify right side
    1,624.80x = 2,759,427.95
  5. Step 5: Solve for x
    x = 2,759,427.95/1,624.80
  6. Step 6: Final answer
    x = 1,698.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.